Specifications
Configuration and Maintenance Manual
16
Note: If MAS is configured in LAN mode with a Mitel Multi-protocol Border Gateway 
(MBG) Web Proxy, refer to the MAS Installation and Maintenance Guide and Mitel 
Border Gateway Guide with Web Proxy 2.0 Guide, located on the Mitel Web site
(http://edocs.mitel.com), for configuration information.
Figure 2: MCA on MAS (Network Edge)
Table 5: Firewall Port Settings 
Port Range Direction Purpose and Details
TCP 22 (SSH) Server → Internet Allows outbound packets and replies on TCP 
port 22 between MAS and the Internet. Used to 
enable server registration, software and license 
key downloads, alerts, and reporting.
TCP 80 (HTTP) Server ← Internet (IP address 1) and
Server ← LAN
Allows inbound packets and replies on TCP 
port 80. Used for MC A Web pages.
TCP 443 (HTTPS) Server ← Internet (IP address 1) and
Server ← LAN
Remote server management and Web pages of 
MCA when set for SSL mode. If MCA is not set 
to SSL mode, Mitel recommends that you close 
this port or limit it to specific hosts that have 
remote management capability.
TCP 4443 Server ← LAN Allows outbound packets and replies from 
internal users and port 4443. Used between 
internal users for Web conferencing
Server ← Internet (IP address 2) Allows outbound packets and replies from 
external users on port 443 and redirects them to 
port 4443 on the server. Used between external 
users for Web conferencing. 
(Sheet 1 of 2)










